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No. 234,898. Patented Now-30,1880.'

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N. PETERS, PHOTOMTHOGRAPMER Usare STATES .maar Fries.

DANIEL P. VEIR, OF SALEM, MASSACHUSETTS, ASSIGNOR OF ONF-HALF TO JOHN JACKSON, OF SAME PLACE.

FLUID-METER.

SPECIFICATION forming part of Letters Patent No. 234,898, dated November 30, 1880. Application filed May l5, 1880. (Model.)

To all whom it may concern a rod, B. Moving in the right-hand pair are Be it known that l, DANIEL P. VEIR, ot' pistons P and P", connected by a rod, B. Salem, in the county of Essex and State of The bar M is made fast to the piston-rod B Massachusetts, have invented new and useful and controls the action ot' the valve V by Improvements in Fluid-Meters, of which the means of the pin D. It also moves the lever 5` following is a specification, reference being E, Fig. 3, (one of two levers which act upon had to the accompanying drawings, like letthe ratchet-wheel \V,) by means of the pin l', ters indicating like parts in the different iig- Fig. 3. The bar M is made fast to the rightures. hand piston-rod B', and controls the action of 1o My invention relates to meters for measurthe valve V by means of the arm L and the 6 ing the amount of water or other iluid which pin D. It also moves the lever E (one ot' shall be made to pass through them. two levers which act upon the ratchet-wheel All the other meters of which I have knowl- WV) by means ot' the pin I. edge are either so complex in construction as The registeris upon the outside ofthe front to be liable to get out of order, and a-re too of the meter, and may be of ordinary construe- 65 costly for common use, or do not perform the tion. Only the pinionF is shown in the drawwork of measuring accurately, many of them ings, Fig. 3. being so constructed that they can be set so The back of the valve-chamber is cast with that tluids will pass through them without certain duets. On the left, in Figs. l and 2,

2o making any record. is shown an opening, G, to receive the water 7o My meter is simple, of few parts, and not under pressure which passes into the Valveliable to get out of order; but no Huid can be chamber at H. The whole meter is full ot' wapa-ssed through it, even in ever so small a ter all the time. stream, without leaving acorrect record on the O O, Fig. 2, are openings or outlet-ports,

index or register. Being so simple in conwhich allow the Huid to pass oli' at G by 75 struction it can be furnished at a very low means ofa ductin theback of the valve-champrice. Y ber from O to G. These openings O and O are .Figure l is a vertical section of a meter, in the position shown in Fig. 2, and are ofa showingthe pistons and mechanism for movsize sufficient for the free passage of the iiuid ing the valves and register-arms. Fig.2shows, and in the form ot' a sector of a circle, or 8o on a smaller scale, the valves and openings by very nearly so, the said sector being about 011ewhich the water or other-fluid passes through. twelfth of the circle ot' which it might form a Fig. 3 is a view of the removable front of the part. meter, upon the under or inside face of which On both sides of each of the outlet-ports,

the ratchet-wheel and the arms by which it is and ofthe same size and shape with them", and 85 moved are attached, which arms are operated being very nearly equal sectors ot the same by the bars M M attached to the pistonrods. circle, but not extending quite to the center of The arms E and E and ratchet-wheel YV are the circle, and separated from the outlet-ports shown by dotted lines. Fig. 4 is a section of by other equal sectors ot' the same circle, are

40 the meter from the front to the back, showing what may be called the cylinder-ports 7 O' O 9o the pistons P and P, the ducts for the pas- Ol O, Fig. 2, openings in the back of the valvesage of the fluid to the spaces b and b, and chamber, through which the liuid may pass to the ratchet-wheel and pinion F with one pawlthe spaces b b b b, Fig. l, one space being bearing lever. Fig. 5 is a horizontal section at the end of and open to each of the cylinot' the meter, showing the bars, arms, and leders, each port being thus connected by aduct 95 Y vers more clearly. to the space at the outer end of the cylinder The central valve-chamber, A, hast-wo pairs nearest to it. The valves which open and of cylinders, C O and O" C', all ot' the same close these ports are each shell-shaped sliding dimensions. Moving in the pair ot' cylinders valves, covering an area of about ive-twelfths 5o on the left are pistons P and P', connected by ot' the circle of which the ports are sectors. roo

They vibrate on what would be the centers of aid circles, and are moved by the bars M and the arms L and L', and the pinsD and D'. The valve for the right-hand ports is moved )y the left-hand piston-rod, and the valve for ,he left-hand ports is moved by the right-hand )iston-rod. The arm by which the valve Vis noved is attached to the center of said circle )r pivotal point, but the arm by which the valve V' is moved is attached to the circumterence. This arrangement gives the reverse action necessaryfor the proper operation oi' the pistons. A portion of each valve is raised, making a box or shell with the under side open, having a at lange working watertight. These valves shut at all times the direct passage oi the iiuid from the valve-chamber to the outlet-ports O O, but permit, as the valves vibrate, the alternate passage of the fluid from the valve-chamber to one of the spaces b b' b" b', and from one ot' these spaces to the cylinder-ports and under the valves to the outlet.

The operation of the meter may be more particularly described as follows, Fig. l representing both pairs ot' pistons as being on their way down. The pistons work as ir they were attached to a quarter-crank. The bar M, attached to the left-hand piston-rod, has so controlled the valve V' that it has opened the cylinder-port to allow b'" through the outlet O, and to allow the pressure of the fluid on the piston P" through its port to the passage b. The bar M', attached to the right piston-rod, so controls the valve V that the cylinder-port is open to allow the escape of the uid from b' and is closing` the upper left cylinder-port, and will close it entirelyjust before the pistons P and P' reach the end of their stroke. This reduces the velocity of these pistons, bringing them gently to a rest at the end of their cylinders, getting rid ot' a buer or cushion, and so that there is no noise orjar at the end ofthe strokes. For an instant, when the pistons P and P' are at the ends of their cylinders, the valve V closes both cylinder-ports to the spaces b and b', but at this time the pistons P" and P"' are halfway down, their cylinder-ports are wide open, and they are moving at their greatest speed. They are rapidly moving the valve V and quickly reverse it, so as to open the port to the space b', to admit the pressure ofthe iiuid from the valve-chamber, and also the port l), to allow of the escape of the fluid in cylinder the escape ofthe iluid from C through b to the outlet 0. The other valve and pistons have the same operation, and by their reciprocal action maintain a continuous motion and keep up a steady discharge of the iuid` from` the outlet Gr'. This arrangement gets rid ot' a crank or cani inside the valvechamber, necessary in many other kinds of meters.

I have represented the meter as standing on one end, as shown in Fig. 1, but it would work equally well in other positions. If the back were cast dat, so as to make a level base, it might be preferable-to have it rest upon the back.

The two levers E and E' operate the ratchetwheel W by the help of the pawls or locks p andp', which are pressed against the wheel by springs, as shown in Fig. 3. These levers are moved by the bars M and M' by means of the pins I and I'. By means ot' this arrangement any motion of the pistons, whether full or short, will turn the ratchet-wheel in proper proportion to the length of the stroke, and as the cylinders are uniform in size the amount of iiuid passing through will be correctly recorded under all circumstances.

The valves are ot` such a construction that they can at no time, or when in any position, -allow any iuid to pass through unless the pistons move.

What I claim isl. The combination ofthe ratchet-wheel W with a registering device, the two arms E and E', the pawls p and p', the bars M and M', operated by piston-rods, substantially as described, whereby any movement of the pistons is correctly recorded.l as set forth.

2. In a Huid-meter, the combination ol" two valves, passages for the luid, two pairs ot" pistons, two piston-rods, a ratchet-wheel, two levers, each carrying a pawl adapted to engage with said ratchet-wheel, and two arms secured upon and moved by said piston-rods and adapted to engage with and operate the pawl-bearing levers, substantially as described.

3. The valves V and V', cliainbered upon one side, and provided with the arms L and L', in combination with the ports() O O' O' O' O', the bars M and M', and the piston-rods B and B', substantially as described, and for the purpose specified.

DANIEL Pi WEIR Witnesses:

PAUL B. Pa'rcrnN, A. H. Passons.

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